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TCL 30800-000305 40-R51MT8-MAA2HG Main Board for 50S434

TCL 30800-000305 40-R51MT8-MAA2HG Main Board for 50S434

SKU:: sj-30800-000305

$64.99

TCL 30800-000305 40-R51MT8-MAA2HG Main Board for 50S434

$64.99

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Available Out of Stock | Ships same business day if ordered before 4pm CT!

180-Day Warranty

We highly recommend matching your part number. Learn more

We have a repair tutorial video for this part. Watch it below!

TCL 30800-000305 40-R51MT8-MAA2HG Main Board for 50S434

Known Models

Brand	Models	Versions
TCL	50S434

Part Number:

30800-000305

Warranty:

180-Day Warranty

Visible Number:

30800-000305

Visible Number:

30801-000270

Visible Number:

V8-R51MT02-LF1V133

Visible Number:

40-R51MT8-MAA2HG

Brands:

TCL

Models:

50S434

Videos

What is a main board?

The main board is basically the “brains” of your TV and controls everything, from the audio to video streams. All of the user data and settings are also stored on the main board.

Which symptoms does a main board fix in a TV?

• If your TV doesn’t turn on, it could be the main board. If your TV turns on but has no video and/or no audio, it could also be the main board.

• If one HDMI input works but others don’t work, it could be the main board.

*These are helpful tips to get you started and don’t represent accurate diagnoses for every TV model and failure. If you’re unsure of your diagnosis, we recommend checking out our YouTube channel or reaching out to a local TV technician for assistance.

How easy is it to replace a main board?

It's easy! Once you match the part number on your main board with the part number listed on this page to confirm compatibility, you’ll just need a screwdriver and the ability to remove the back of your TV and replace the board.

3.0

1 Review, 1 Q&As

3.0

1 Review, 1 Q&As

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REVIEWS
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1 Review

Updating Results

04/14/25

Bill W.

06/23/23

Didn't fix

I sent back the 2 boards on my TV for you guys to check would like some feed back from that...I returned your main board because it didn't fix the problem.

Earl L.

05/23/22

Q: Hello. Can you tell how long the board will be out of stock for?? Or point me to where I can purchase on. TCL 30800-000305 40-R51MT8-MAA2HG Main Board for 50S434. Thanks.

ShopJimmy

05/24/22

A: Unfortunately stock is rather tough to predict. Due to how we source and harvest our TV parts (from new TVs that are cosmetically damaged), we're unable to give you an accurate in-stock lead time. The good news is that we're constantly adding new TV parts to our inventory, so please don't hesitate to check back often.

In the meantime, I would definitely recommend going to the part's product page and clicking the black "Notify me" button (you'll need to enter your email address in the field above it). We'll then email you as soon as we get that part back in-stock!

Please let me know if you need anything else. I'm happy to help!

We recommend matching the part number on your original part with the part number listed on this page to ensure compatibility.

While matching your model number is a great start, many models use variations of each part and they're not always interchangeable.

We include brief instructions in red text on some listings (also displayed below without the red font). Please look for these instructions to confirm any important info that you'll need to identify on your original part. Additionally, we highlight the part number in our photos.

Please don't hesitate to contact us with any questions. We're here to help!

TCL 30800-000305 40-R51MT8-MAA2HG Main Board for 50S434

Known Models

Brand	Models	Versions
TCL	50S434

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TCL 30800-000305 40-R51MT8-MAA2HG Main Board for 50S434

Known Models

Videos

What is a main board?

Which symptoms does a main board fix in a TV?

How easy is it to replace a main board?

WRITE A REVIEW

ASK A QUESTION

Make an Offer on this Item!

Need more quantity?

We recommend matching the part number on your original part with the part number listed on this page to ensure compatibility.

Known Models